package com.lc.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.lc.reggie.entity.Category;
import com.lc.reggie.service.CategoryService;
import com.lc.reggie.common.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * 分类管理
 */
@Slf4j
@RestController
@RequestMapping("/category")
public class CategoryController
{
	@Autowired
	private CategoryService categoryService;
	
	/**
	 * 新增分类
	 *
	 * @param category
	 * @return
	 */
	@PostMapping
	public R<String> save(@RequestBody Category category)
	{
		log.info("新增分类，分类信息：{}", category);
		categoryService.save(category);
		return R.success("新增分类成功");
	}
	
	/**
	 * 分页查询
	 *
	 * @param page
	 * @param pageSize
	 * @return
	 */
	@GetMapping("/page")
	public R<Page> getPage(int page, int pageSize)
	{
		//分页构造器
		Page<Category> pageInfo = new Page<>(page, pageSize);
		//条件构造器
		LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
		//添加排序条件，根据sort进行排序
		lqw.orderByAsc(Category::getSort);
		
		//分页查询
		categoryService.page(pageInfo, lqw);
		return R.success(pageInfo);
	}
	
	/**
	 * 根据id删除分类
	 * @param id
	 * @return
	 */
	@DeleteMapping
	public R<String> delete(Long id)
	{
//		categoryService.removeById(id);
		
		//判断能否删除（分类是否关联了菜品和套餐）？
		categoryService.remove(id);
		log.info("删除分类，id为：{}", id);
		return R.success("分类信息删除成功");
	}
	
	/**
	 * 根据id修改分类信息
	 * @param category
	 * @return
	 */
	@PutMapping
	public R<String> update(@RequestBody Category category)
	{
		log.info("修改分类信息：{}", category);
		categoryService.updateById(category);
		return R.success("修改分类信息成功");
	}
	
	/**
	 * 根据条件查询分类数据
	 * @param category
	 * @return
	 */
	@GetMapping("/list")
	public R<List<Category>> getList(Category category)
	{
		Integer type = category.getType();
		//条件构造器
		LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
		//添加条件
		lqw.eq(type != null, Category::getType, type);
		//添加排序条件
		lqw.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);
		
		List<Category> list = categoryService.list(lqw);
		return R.success(list);
	}
	
}
